As a pastor working on sermons from the Greek text through Revelation, I've found that Mounce's NICNT commentary on Revelation is one of the best ways for me to summarize what I've read in all the other commentaries.
I have to take exception to the previous reviewer regarding Mounce's commentary on Revelation-saying that Mounce doesn't declare himself on issues. I think Mounce writes with clarity...boiling down the sometimes complex arguments of the various views to a few sentences that make sense. It's surprisingly easy to understand...so good that you can actually use some of his summaries in the pulpit and not lose the average listener! That is amazing to me. He makes a judgment call, sometimes coming to a different view than most or many other commentators.
For example, on the term ANGELOS (Angel) in Revelation 1:20, 2:1 and the other six churches, Mounce reviews the other positions...and then concludes that the term 'prevailing spirit' may capture the real meaning there. However, many believe that the term here means 'angelic messenger' or a real angel from heaven. I think he missed it on that point, but he knows way more about Greek than I do and I respect his position.
I found that Mounce is not always complete when describing the historical situation for each verse. It's helpful to read other commentaries for background information-they all give nuggets that bring out different aspects of the historical situation. For example, Beale (NIGTC) on Revelation has more information as does Aune on Revelation. Also Osborne (Baker) is helpful too. I have perhaps about ten scholarly works on Revelation. Yet Mounce is easier for a busy pastor to read through than any of these other fine authors...even if he gives less information. (Beale is my number one pick even so). I find myself unwilling to part from my Mounce commentary. What when compared to the heavy hitting commentaries is less information, is still a lot of useful detail for any preaching pastor or bible teacher working through the text of Revelation. Plus he's really easy to understand.
If you are preaching through Revelation, or writing a paper for a course, or even teaching a class on the subject...or a small group discussion, Mounce can help you. When describing the historical context of the seven churches, he sometimes strikes a lyrical cadence that is very useful. I love this commentary! What a rare flower! Get a copy if you can afford it!